O I 3d (3)d(o) - (2)p(4) (3)p transition at 1026 A in the day airglow

Technical Report · Sat Aug 01 04:00:00 EDT 1987

OSTI ID:5229301

Meier, R R; Anderson, D E; Paxton, L J; McCoy, R P

An emission feature at 1026 A observed at 600 km in the dayglow with a spectrometer on board the STP 78-1 spacecraft cannot be explained by geocoronal hydrogen Lyman. An accidental resonance of some lines of the O I multiplet at 1026-A with the broad solar Lyman-beta line can in fact account for the observed emission rate, based on analysis with a Monte Carlo radiative transport model. Photoelectron excitation of atomic oxygen is negligible compared with resonant scattering. These airglow results support a ratio of 66 to 1 for the solar Lyman-alpha to Lyman-beta line center fluxes.

• Research Organization: California Univ., Berkeley (USA). Space Sciences Lab.
• OSTI ID: 5229301
• Report Number(s): AD-A-189399/9/XAB
• Country of Publication: United States
• Language: English

Related Subjects

640201* -- Atmospheric Physics-- Auroral
Ionospheric
& Magetospheric Phenomena
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AIRGLOW
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
FAR ULTRAVIOLET RADIATION
LYMAN LINES
MEASURING INSTRUMENTS
RADIATIONS
RESONANCE
SCATTERING
SPECTROMETERS
ULTRAVIOLET RADIATION